Directions: Read the following sentence to determine if there is any grammatical or contextual error within it. If there is an error, it will be in one part of the sentence. Identify the part in which the error exists and mark it as your answer. Please consider the part in bold as grammatically correct. If there is no error, select E, i.e., 'No error' as your answer. Please ignore punctuation errors.

If daily salt intake is reduced (A) / by five to eight grams, / the risk of cardiovascular disease can be lowered, (B) / and this reduction can help preventing (C) / obesity and high blood pressure. (D) No error (E)